Which dose of venlafaxine is more likely to be effective for adhd - 75 or 150 mg ?

Not commonly used: Venlafaxine is not commonly prescribed for ADHD and so effective dose is difficult to know. Please speak with your prescribing physician.

Higher dose likely: Treatments effective for ADHD most commonly work through affecting the neuro transmitters dopamine and/norepinephrine. Effexor needs to be at a relatively high dose before it starts to act on norepinephrine and there is some potential for subsequent affect on dopamine if at a higher dose. At low dose. Effexor (venlafaxine) at lower dose primarily acts as an ssri